Results 81 to 90 of about 72,006 (264)

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

Identifizierung von Haplotypen bei Pityogenes chalcographus (Col., Scolytidae) durch SSCP [PDF]

, 2008
Pityogenes chalcographus is a widely distributed spruce pest in Eurasia (KNIZEK et al. 2005). In 70ies, E. Führer studied the intraspecific variation of this spruce bark beetle and detected race differentiation among European populations based on ...
Arthofer, Wolfgang, Avtzis, Dimitrios N., Stauffer, Christian   +2 more
core  

Human Impacts on Forest Biodiversity in Protected Walnut-Fruit Forests in Kyrgyzstan [PDF]

, 2014
We used a spatially explicit model of forest dynamics, supported by empirical field data and socioeconomic data, to examine the impacts of human disturbances on a protected forest landscape in Kyrgyzstan.
Abdymomunov R. A., Adrian C. Newton, Alexander Lovegrove, Almaz Orozumbekov, Arnold J., Bengtsson J., Blaser J., CABI, Carey C., Chemonics International Inc, Chyngojoev A., Core E. L., Cremer K., Dzhangaliev A. D., Dzhangaliev A. D., Eastwood A., Elena Cantarello, Ellenberg H., Food and Agriculture Organization of the United Nations, Greene D. F., Hemery G. E., Herold B., Jahn G., Jennifer Birch, Juniper B. E., Kolov O., Kyrgyz Forest Service, Kyrgyz Forest Service, Lockwood M., Mattock J., Musuraliev T. M., Müller-Schneider P., Müller-Schneider P., Newton A. C., Newton A. C., Niels Brouwers, Orozumbekov A., Orozumbekov A., Paganová V., Peter D., Phillips A., Schmidt K., Secretariat of the Convention on Biological Diversity, Sherbinina E. N., Spencer W. D., Sukacev V. N., Venglovsky B. I., Wyckoff G. W.   +47 more
core   +2 more sources

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Pollen frequency of Abies and Picea in peat: A correction on some published records from Indiana bogs and lakes [PDF]

, 1944
An error was introduced in a number of reports on pollen profiles from Indiana bogs and lakes because Picea and Abies were separated on basis of size as presented in a key by Sears, which included only Picea mariana but not Picea ...
Potzger, J. E.
core   +1 more source

On the Occurrence of Natural Norway spruce Woodland in the Pieniny Mts (Western Carpathians) [PDF]

, 2015
According to Kulczyński (1928), a natural Picea abies forest occurs in the mountain range of the Pieniny Mts on the slopes of the mountain Vysoke skalky.
Kucera, Peter
core   +1 more source

Benefit or ecological trap? Monitoring the effects of small clear‐cuts on capercaillie Tetrao urogallus and its mammalian predators

Wildlife Biology, EarlyView.
The shift to ‘close to nature forestry' as the dominating forestry regime in western‐European forests has resulted in increasing timber volume and denser forests with negative effects on photophilic species. Hence, there is an increasing focus on active habitat management measures to support these species.
Maria Kochs, Joy Coppes, Tanja Beutel, Gabriel Holz, Jim‐Lino Kämmerle, Michael Kraft, Veronika Braunisch   +6 more
wiley   +1 more source

Maximizing the detection probabilities of dusky grouse for population monitoring

Wildlife Biology, EarlyView.
Despite its status as a game species in the western USA, rigorous monitoring of dusky grouse Dendragapus obscurus populations is limited. Obtaining an adequate number of observations for effective population monitoring of dusky grouse is challenging due to difficult‐to‐reach montane habitats, cryptic behaviors, and limited personnel, time, and funds at
Elizabeth A. Leipold, Claire Gower, Lance B. McNew   +2 more
wiley   +1 more source

European Mixed Forests: definition and research perspectives [PDF]

, 2014
peer-reviewedAim of study: We aim at (i) developing a reference definition of mixed forests in order to harmonize comparative research in mixed forests and (ii) briefly review the research perspectives in mixed forests.
Ammer, Christian, Andenmatten, Ernesto, Barbati, Anna, Barreiro, Susana, Brang, Peter, Bratislav, Matovic, Bravo, Felipe, Bravo-Oviedo, Andres, Coll, Lluis, Corona, Piermaria, del Rio, Miren, den Ouden, Jan, Ducey, Mark J., Forrester, David I., Giergiczny, Marek, Jacobsen, Jette B., Kris, Verheyen, Lesinski, Jerzy, Löf, Magnus, Mason, Bill, Metslaid, Marek, Morneau, François, Motiejunaite, Jurga, O’Reilly, Conor, Pach, Maciej, Ponette, Quentin, Pretzsch, Hans, Short, Ian, Skovsgaard, Jens Peter, Soliño, Mario, Spathelf, Peter, Sterba, Hubert, Stojanovic, Dejan, Strelcova, Katarina, Svoboda, Miroslav, Svoboda, Miroslav, von Lüpke, Nikolas, Zlatanov, Tzvetan   +37 more
core   +9 more sources

Dietary shift of the common leopard Panthera pardus in and around Bani Wildlife Sanctuary, western Himalayas: implications for conservation and human–wildlife conflict

Wildlife Biology, EarlyView.
Understanding the dietary patterns of apex predator like the common leopard Panthera pardus is essential for evaluating their ecological role, particularly in landscapes where human–wildlife conflict is prevalent. In this context, this study investigates the seasonal diet composition of the common leopard in and around the Bani Wildlife Sanctuary, a ...
Iyaz Quyoom, Bilal A. Bhat, Arif Nabi Lone, Wasim Sajad Malik   +3 more
wiley   +1 more source